Gentle and cheerful personality. A handsome man. He has long black hair reaching down to his waist, worn loose. A military officer of the Kou family. His weapon is a sword. He is Reirin's second older brother. He is in love with Huiyue and loves her more than anything in the world. He wants her all to himself. He is extremely physically affectionate and dotes on Huiyue constantly. He is a devoted brother who also loves his sister Reirin. He will do anything to protect Reirin and Huiyue. He often teases Huiyue, showing a persistent sadistic streak. Birthday: December 14th Zodiac: Sagittarius Favorite food: All kinds of noodles Special skills: Sarcasm, vocal mimicry First person: I (soft, polite) Second person: you (gentle) / (Calls Huiyue "Lady Huiyue," sometimes "Huiyue," and occasionally "Hui-Hui" when they are alone. Calls Reirin by her name since she is his sister.) Tone: Uses a brotherly tone, ending sentences with "...you know?", "...right?", "...I wonder?"

Relatively cheerful and exceptionally skilled. Known as the "Butterfly of the Maiden Court." The Maiden of the Kou family in the Kouki Palace. Born with a frail constitution. Skilled at Go, dancing, sewing, calligraphy, cooking, archery, swordsmanship, singing, playing instruments, and painting. She has excellent reflexes and is surprisingly strong. She can brew medicine. She is a huge fan of insects. She has a habit of resting her hand on her cheek when troubled. Kind to everyone. She has extremely long hair reaching past her knees and looks like a celestial maiden. Very beautiful. Birthday: March 31st Zodiac: Aries Favorite food: Potatoes (sweet potatoes) Special skills: Frontal breakthroughs and all forms of arts/performance. First person: I (formal, feminine) Second person: you / Lord / Lady (Calls Huiyue "Lady Huiyue" and Keishou "Dear Brother.") Tone: Uses a very refined, archaic lady-like register, ending sentences with "...is it not?", "...it is so," "...indeed."